Kamran Danish’s Post

I'd say the opposite: Start with Arduino. The nuance here is that we shouldn't STOP at Arduino. Many students are interested in exploring embedded systems, but they're not really sure if it's the right path for them. So, they should START with Arduino, and see if they enjoy the development process (which is different from regular software development e.g. webdev, desktop C++ app, etc.) Right after they're certain, then it's time for them to UNLEARN "wrong" concepts Arduino has taught them. And start RELEARNING the correct path. In fact, I created a framework exactly for this: LURE Framework (Learn, Unlearn, Relearn, Expand). Because spending months trying to learn more "advanced" embedded platforms only to find you don't enjoy embedded is very sad. PS: Also, when we say "Arduino," it doesn't always mean Arduino UNO board etc, we can absolutely start with ESP8266, ESP32, or even Teensy 4.1 using the Arduino framework.

💡 Demystifying SONiC Device Drivers — A Practical Learning Guide Have you ever wondered how SONiC connects the dots between hardware drivers, PMON daemons, and FPGA-based architectures? I recently created a visual learning guide that simplifies these concepts — from Sysfs to Platform APIs, PCIe to I²C controllers, and FPGA bridges that power SONiC’s flexibility across platforms. This post walks through: 🔹 How SONiC platform monitoring works 🔹 The shift from sysfs-based access to Python Platform APIs 🔹 How FPGAs extend SONiC’s hardware control 🔹 And why understanding these layers matters for engineers, students, and contributors in open networking If you’re exploring network systems, embedded Linux, or FPGA design, this carousel will help you see how SONiC brings it all together. Let’s make learning system software and open networking accessible to everyone. 🌐⚙️ 👇 Swipe through the slides to learn! #SONiC #LinuxKernel #DeviceDrivers #Networking #FPGA #PlatformAPIs #OpenSource #EmbeddedSystems #SystemSoftware #LearningTogether #PlatformEngineering

𝗟𝗲𝗮𝗿𝗻 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝘁𝗵𝗲 𝗥𝗶𝗴𝗵𝘁 𝗪𝗮𝘆, 𝗡𝗼𝘁 𝘄𝗶𝘁𝗵 𝗔𝗿𝗱𝘂𝗶𝗻𝗼 🛑 If your long-term goal is to become a strong embedded engineer, don’t make Arduino your starting point. Arduino hides almost everything that actually matters in embedded systems, register-level work, peripheral configuration, memory constraints, driver development, and debugging. It gives you pre cooked libraries, abstracted APIs, and a false sense that “𝘼𝙧𝙚 𝙚𝙢𝙗𝙚𝙙𝙙𝙚𝙙 𝙩𝙤 𝙚𝙖𝙨𝙮 𝙝𝙖𝙞.” That illusion breaks the moment you face a real microcontroller, a bare-metal setup, or an SoC running Linux. A better starting path: • Pick an STM32, ESP32, or any MCU where you must work with datasheets, registers, and HAL at minimum. • Learn how peripherals really work, GPIO, timers, interrupts, UART, SPI, I2C. • Understand linker scripts, memory maps, and toolchains. • Build and debug without relying on magical wrapper libraries. • Gradually transition into embedded Linux, Yocto, drivers, and board  bring-up. Arduino isn’t the problem. The problem is stopping at abstraction. If you actually read the underlying microcontroller’s datasheet, understand the registers, and write firmware in a real environment like Keil, VS Code, or bare-metal toolchains, then even an Arduino board can teach you solid fundamentals. #𝘌𝘮𝘣𝘦𝘥𝘥𝘦𝘥𝘚𝘺𝘴𝘵𝘦𝘮𝘴 #𝘌𝘮𝘣𝘦𝘥𝘥𝘦𝘥𝘌𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨 #𝘍𝘪𝘳𝘮𝘸𝘢𝘳𝘦𝘋𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 #𝘔𝘪𝘤𝘳𝘰𝘤𝘰𝘯𝘵𝘳𝘰𝘭𝘭𝘦𝘳𝘴 #𝘐𝘰𝘛𝘋𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 #𝘚𝘛𝘔32 #𝘌𝘚𝘗32 #𝘌𝘮𝘣𝘦𝘥𝘥𝘦𝘥𝘓𝘪𝘯𝘶𝘹

C vs Embedded C While both share the same syntax and fundamentals, their purpose differs! 🔹 C is a general-purpose language used for developing desktop applications and system software. 🔹 Embedded C is a specialized extension of C, designed to program microcontrollers and interact directly with hardware. C focuses on logic and algorithms, while Embedded C focuses on hardware control, memory optimization, and real-time performance. inshort C : software logic Embedded C: logic + hardware control #CProgramming #EmbeddedSystems #Microcontrollers #Learning #Firmware #IoT

C vs C++ in Embedded Systems Choosing the right language can depend a lot on the system constraints and the scale of the project. 🔹 C is great when you need: Tight control over hardware Predictable memory usage Minimal overhead on small microcontrollers 🔹 C++ helps when you need: Modularity and reusable code Better structure for growing or complex firmware Abstraction without losing hardware access Personally, I think both languages have their place — the key is understanding when to prioritize control and when to prioritize maintainability. What do you prefer for embedded development — C or C++? 👇 #EmbeddedSystems #Firmware #CProgramming #CPP #Microcontrollers #IoT #Engineering

🚀 Building a Real-Time PID Motor Controller on BeagleBone Black Excited to share a project my partner Dorra Turki and I just completed: a full real-time DC motor control stack running on a BeagleBone Black, from cross-compilation on PC to hardware control on the target board. 🏗️ System Architecture • Multi-threaded C application using POSIX threads • SCHED_FIFO real-time scheduling (priority 80) with priority-inheritance mutexes • 50 ms control loop driven by a high-resolution timer • Custom kernel module (SW_meas_P9_11.ko) for precise speed measurement via /proc/SW_P9_11 • Hardware PWM control on P9_14 with ADC feedback from AIN3 ⚙️ Control Flow 1. A periodic timer interrupt toggles a status LED and kicks off each control cycle. 2. ADC thread reads the speed reference from the on-board ADC (in_voltage3_raw, 12-bit). 3. Encoder thread uses the kernel module and 16-sample averaging to estimate motor speed and reduce noise. 4. PWM thread runs a PID controller and updates the motor duty cycle via the PWM1A sysfs interface. 🎯 Real-Time Features • mlockall to lock memory and avoid page faults at runtime • Explicit real-time scheduling (SCHED_FIFO) and chrt -f 70 when launching the app • Condition variables to synchronize the ADC, encoder, and PWM threads efficiently • clock_nanosleep for precise timing with 100 µs resolution in the encoder loop 💻 Tech Stack & Tooling • C with POSIX threads on a Linux RT kernel • libgpiod for GPIO and LED control • Custom PID implementation with configurable gains (KP, KI, KD) • Cross-compilation from Linux x86_64 to ARM using an arm-linux-gnueabihf toolchain • Deployment script (launchapp.sh) that:  – Inserts SW_meas_P9_11.ko  – Starts the real-time app with chrt  – Cleans up by removing the module on exit The coolest part: once deployed, a simple shell script on the BeagleBone lets us manipulate the DC motor in real time—every 50 ms control cycle and every microsecond of timing precision really matters when you’re closing the loop at 20 Hz on real hardware. 🔗 Full project and source code on GitHub: https://lnkd.in/g4n2_AEH #EmbeddedSystems #RealTime #MotorControl #PID #BeagleBone #Linux #EmbeddedLinux #ControlSystems #Teamwork

Hey everyone! 👋 Continuing our Rust journey for embedded systems — we’ve talked about why Rust is amazing for reliability and performance on hardware, but today, let’s dive into how you actually make it happen: through its incredible ecosystem and tooling. As embedded engineers, we know a language is only as good as the tools that support it. And in Rust, this is where things get really exciting: 🚀 Cargo: Your Best Friend Rust’s package manager, Cargo, is a powerhouse. It handles building your project, managing dependencies, and even running tests. For embedded work, this means easily integrating hardware abstraction layers (HALs), device-specific crates, and RTOS bindings. 🔧 The embedded-hal Standard This isn’t just a library — it’s a foundational set of traits that abstract common hardware peripherals (GPIO, SPI, I²C, UART). This allows you to write high-level, portable embedded Rust code that can be reused across different microcontrollers, speeding up development significantly. 📦 Crates.io & The Community The Rust ecosystem boasts a massive repository of open-source crates. Need a driver for a specific sensor? Chances are, there’s a Rust crate for it. This vibrant community is constantly contributing, collaborating, and solving real-world embedded challenges. 🧠 Debuggers & IDE Support Modern tooling extends to robust debugger support (often with GDB/OpenOCD) and excellent integration with IDEs like VS Code (via rust-analyzer), making the development and debugging experience surprisingly smooth for embedded work. The shift to Rust in embedded isn’t just about adopting a new language — it’s about embracing a modern, highly productive, and safer way to build hardware. The tooling and ecosystem are maturing at an incredible pace, making it easier than ever to jump in. 💬 What Rust embedded tools or crates have you found most indispensable in your projects? Share your go-to resources! #Rust #EmbeddedSystems #EmbeddedDev #IoT #Microcontrollers #Hardware #Firmware #Cargo #embedded_hal #RustLang  

🌟 Embedded Hardware Foundation – Session 1: Introduction to Microprocessor I’ve started the Embedded Hardware Foundation course from Etalvis Learning, and today’s session gave me a solid start — understanding the Microprocessor, the true brain of every embedded system. 💡 Before this, I completed the Electronics Foundation Course and I am currently pursuing the C Programming Course as well. These step-by-step learnings are helping me connect both hardware and software sides of embedded systems more clearly. Here’s what I learned in Session 1 👇 🧠 Microprocessor = Brain of the System Just like our brain processes thoughts, a microprocessor processes data and controls every operation inside a device. 🔹 Main Components of a Microprocessor: ALU (Arithmetic Logic Unit): Performs arithmetic and logic operations. Registers: Tiny, fast memory units that store temporary data. Control Unit: Directs and coordinates all operations. Bus System: Communication path that connects memory and peripherals. 🗂️ Types of Memory: Internal Memory: Registers and cache for quick data access. External Memory: ROM, RAM, or Flash used for storing data and programs. ⚙️ Key Operations: 1. Processing – Performing arithmetic or logic tasks. 2. Storage – Reading or writing data to memory. 🧩 Example: When we execute R0 + R1 → R2 ➡️ The ALU adds R0 and R1, and the result is stored in R2. 📘 Concept Link: Human Brain → Processes thoughts Microprocessor → Processes data This session helped me visualize how data flows inside a microprocessor — from memory to ALU and back — forming the foundation for every embedded system. 📄 I’ve also created digital study notes (PDF) summarizing these concepts and diagrams as part of my learning journey. #EmbeddedSystems #Microprocessor #LearningJourney #HardwareEngineering #Electronics #CProgramming #EtalvisLearning

📘 Exploring the “Insider’s Guide to Philips ARM7-Based Microcontrollers (LPC2100 Series)” by Trevor Martin If you’re diving into the world of ARM-based embedded systems, this book is a goldmine! It covers everything from the ARM7 CPU core architecture, software development using Keil uVision & GNU tools, to system peripherals and hands-on tutorials with practical exercises. What makes it stand out is how it balances theory and practice, helping both beginners and professionals understand how to efficiently program and debug ARM7 microcontrollers. Whether you’re learning ARM instruction sets, LPC2000 architecture, or interfacing peripherals, this guide provides a structured, real-world approach to embedded programming. 💡 Highly recommended for anyone working on ARM-based development or exploring microcontrollers like the LPC2100 series. 👉 Follow me for more technical insights, embedded system resources, and learning materials!

It’s been quite some time since I wrapped up a few projects in Bare-Metal C — a programming approach where you directly work with the hardware registers of a microcontroller, without relying on abstraction layers like HAL. Working at the register level has been an incredibly insightful experience. It helped me truly understand how microcontrollers operate — from clock setup to peripheral control — while also giving me hands-on experience with key communication protocols like GPIO, SPI, I2C, and UART. Through this, I’ve seen first-hand the benefits of Bare-Metal development: faster execution, smaller code size, and more precise control compared to HAL-based approaches. This is just a checkpoint in my Bare-Metal journey — I’ll continue exploring low-level programming and applying it in future embedded projects and professional endeavors. You can check out some of my Bare-Metal C projects here: 🔗 https://lnkd.in/dCki9x9w #BareMetalProgramming #EmbeddedSystems #Microcontrollers #CProgramming #STM32 #LowLevelProgramming #FirmwareDevelopment #HardwareDesign #SPI #I2C #UART #GPIO